<div>
  <el-container>
    <el-header class="main-header" style="height: 70px">
      <nav class="navbar navbar-static-top">
        <!-- Logo -->
        <a href="#" class="logo" style="text-align: center">
          <span class="logo-lg"><img src="assets/img/logo.png"/></span>
        </a>
        <div class="right-menu">
            <span class="help"
            ><i class="fa fa-exclamation-circle" aria-hidden="true"></i
            >帮助</span
            >
          <el-dropdown
            class="avatar-container right-menu-item"
            trigger="click"
            [model]="data"
            (selected)="handle($event)"
          >
              <span class="avatar-wrapper">
                <img
                  src="assets/img/user2-160x160.jpg"
                  class="user-avatar"
                />
                Jay.Liu
              </span>
          </el-dropdown>
        </div>
      </nav>
    </el-header>
  </el-container>
</div>
